alleryStart learning →Solve: n - 0.63 = -4.2.
An=-4.83
Bn=3.57
Cn=4.83
Dn=-3.57
Answer & Solution
Correct answer: D. n=-3.57
1. To isolate n, add 0.63 to both sides using the Addition Property of Equality.
2. n minus 0.63 plus 0.63 equals -4.2 plus 0.63.
3. Simplify: -4.2 plus 0.63 equals -3.57.
4. Check: -3.57 minus 0.63 equals -4.2, which matches the original equation.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations and Inequalities", section 2.1 Solve Equations Using the Subtraction and Addition Properties of Equality_
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